{
  "manageEntity": {
    "action": "Update",
    "entityId": "39725341",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4277e8187debb75e80f78cafc30b3a3c314ec72fb1cf4832db4882799fd6ce8b",
    "signature": "0xd6a1c48cb0b8ad5e254a67ab38f9355d750eed475f6f92bcdce60043411d570b163f6a579d5848897d57199252e54b558f6dbee5374ac2b5647c967fcc758a051c",
    "signer": "0x238783C13a799296C61E29498267a388fA66eAfe",
    "userId": "39725341"
  }
}