{
  "manageEntity": {
    "action": "Update",
    "entityId": "1481230",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraip5hg6z7rtcdcg7iivteef5holojdsmr5pidukkjn7avc62hu4la\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":130380},{\"type\":\"playlist\",\"playlist_id\":131423},{\"type\":\"playlist\",\"playlist_id\":925215059},{\"type\":\"playlist\",\"playlist_id\":757279892}]}}}",
    "nonce": "0xd5e53651b8584dc6d4ee7edcd9b4679cc2e8433bed24b0a62e91a275b5215705",
    "signature": "0x2c797841fbd14c441b4f4a74d18fd4b6ec1a7f585fd719c8ca080f0c4d5fb6eb3c39af739ba9ec627dd8c76e6f989b70a4fbf356d70944718c5df8768fde954d1b",
    "signer": "0xB7A8862C0EFE4A1c878C78b50f428dD1D678C00d",
    "userId": "1481230"
  }
}