{
  "manageEntity": {
    "action": "Update",
    "entityId": "650818391",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf8a54156d1900c947e08ec883c184f931735df6f4d5eee218228e3b74e947509",
    "signature": "0xec8b356cf346e207094e2045081ec227a6988dd69f3ac35610c768edf79c228f56c7c40ab3097e1707b29625cbde64153cf51b8e05ac888475f2d5663beb86b71c",
    "signer": "0xF3acf39A68d3E3a503A5a3c69724B60600Ee9ACf",
    "userId": "650818391"
  }
}