{
  "manageEntity": {
    "action": "Update",
    "entityId": "124166714",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd105b4f7233dbb781de3989c619ea2c50354c047d2abc5ad760bf1c6409b3e5f",
    "signature": "0x70375e1b29971dd14124c8f282da99bfd80c42e44d9991a978335f253ac6a7754a8bebd60955efb3e8c3be3f4eee9495936cd5a17c608cbf3878024a6afb32841c",
    "signer": "0xa755C236e2776D310dcb42ceB312c667034178b5",
    "userId": "124166714"
  }
}