{
  "manageEntity": {
    "action": "Update",
    "entityId": "952196459",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe31995175c082891d837700073560639322c37688658a890e678c0354e173402",
    "signature": "0xca8654e613241e5c116c1728122266d056ee1658f6ea1ce52a141522abf8a2ca757974dc5e0f39c5f9a621cb10065e267674dad736d15ed31ff7da0b628fd8df1b",
    "signer": "0x89715A6F0c23C84cE71166083899D25bE26BfBC1",
    "userId": "952196459"
  }
}