{
  "manageEntity": {
    "action": "Update",
    "entityId": "383215156",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x92fe14eb9004449681e7276901733ef850724aa3b94824eb0c1669d69a8b39cd",
    "signature": "0x2fd8a93f6ac92306b847f7cfc9018385147463be03f0c9bcfd059022b40567ef11ec0a74861f628e9d392419ead32a57cf2e5fe113474240a892af15e95fe0661c",
    "signer": "0x3FA7F2Ab3B4CE7482C7A14fa8f2d9a056f6C192B",
    "userId": "383215156"
  }
}