{
  "manageEntity": {
    "action": "Update",
    "entityId": "869013110",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xde0caf859c5647c25e09898d1b8733a1449e04388eeabe7728abac796a252070",
    "signature": "0xbb510c52ebf0e41d062b64c00ecb6131f90a435e87c7cdca4257b1ce7a508eb16ed1513c52a090e0c74f8f21297583bc656af82cc459307b2008a85e53ce9bf51c",
    "signer": "0x2fe974Fa703E3bD5c3Ee3410C492fF0324F1F84e",
    "userId": "869013110"
  }
}