{
  "manageEntity": {
    "action": "Update",
    "entityId": "18847180",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xee2cdb41da9b9bae0e39258c228822f44e579d48e72b01af17e20febafc3e600",
    "signature": "0x97451c96e0c80fdacb33628055d4cfee924d7200e7ffd05b3424838ba0f04b323c905681bdad3c5cfccd7e95e1c5dccd88bcfc1e6882fc056002970998dbc18b1b",
    "signer": "0x288c1764d068815E5ff1Ea05BD3F2Db55bCDbe03",
    "userId": "18847180"
  }
}