{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49915",
    "entityType": "User",
    "nonce": "0x636c31c9589444bd56b03c6e6d2202de86e170285289caa26644d2d5e7337e52",
    "signature": "0xfa6ec1aa477279f4e839d1e75a240d39b10dc7959e47354fa03bb750f9498b17321370e2f2462017a9035b000758cb041dea4e4de6e6c2bd03fb60e123b941f41c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}