{
  "manageEntity": {
    "action": "Update",
    "entityId": "755330176",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4a497b8684b4dbae540d5795287a2d650afa9ebc9cc34cf9bd1bc4e11bba5404",
    "signature": "0xd7a468c49c6284ddc39b0805986a40faf53cc0283934af80192694627a2feb521a7f1e5a378c078aa3274d2f95730e899f2d1523ade73f48ed11bb48a3180e7a1b",
    "signer": "0xD98eADAa29791533E4074Ec7A4d2eE7Efa0731d1",
    "userId": "755330176"
  }
}