{
  "manageEntity": {
    "action": "Update",
    "entityId": "358546053",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x990a05ac7cc0f68fdf88020e1b7a93d5b286798261758cc48c1fe38b15df4c19",
    "signature": "0x9538c09877d6b77e85f98cb9b2bf026805c14f350550c3ad28054c05ec7c5ca5263d9b6102a51cd7fafbc6e21c5e2c6e310fa259142baedee4e9b3028ad989e31b",
    "signer": "0x926F8d71a7109CF6Cce00DA74e1BcF50aAf63E8b",
    "userId": "358546053"
  }
}