{
  "manageEntity": {
    "action": "Update",
    "entityId": "411813392",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xab574988e3789937c9c0b7b87f1ee3dbd2ed82c1df5218d8407492b0062cac76",
    "signature": "0x1f087fb00fa3fe6406ccacf462eae2913b34dbfe97420de53496e00b7e46e3a76a179c5e86f40d7548d89d0a598237344a14ed7f4322b26c54b1db7bff8447071c",
    "signer": "0xA7E96760F88c7Eaa4354b6988895d394ff5C739D",
    "userId": "411813392"
  }
}