{
  "manageEntity": {
    "action": "Update",
    "entityId": "169185377",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc13851dc7a190d4ce217684a562f593b7c79d527ea2f46e73ceabc15e8f63811",
    "signature": "0xdae068c702b9b4442f9f89a0a0b7c0f58fe2ed0b304eb2ae972241f9baf00a0555804d398e7e21470289d75dccca639e41c6c3f0b502486dcc9871163306db8f1c",
    "signer": "0xf40B9733C01391cEa83c60E54EBcAA3CEADE6019",
    "userId": "169185377"
  }
}