{
  "manageEntity": {
    "action": "Update",
    "entityId": "90192329",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf6940ba1d009e03e2a338b7b4790d8d3bde6a411bedd923b0821c2b7e4b61c44",
    "signature": "0x78dc51a1aa0c197d5c336169622f554e99910afc07223e3f8947376771f79073773369e57b3feca2394a3792aef1ca369ad95585da8a7d254e90140120c3c2751b",
    "signer": "0x9bA012f2C309C4E91bd5fF6320B7B7DCa74cC304",
    "userId": "90192329"
  }
}