{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1c0d9d339b02bada98ee6722e8e38e0ec086522d6512c5568e5fd935de1e6619",
    "signature": "0x4969af50893473b88c99c1a462fa2f5702f5ac7f9539db601f357ac70b8fc2bc06177e61ba89febd46dec7764d9b41cdeb7061bf75271509fed5ed6d261288db1b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}