{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124060",
    "entityType": "User",
    "nonce": "0xe18e6c90b39273006b4ce21f5ba00d93f9b2ecf3c54501710dc8cc93af71cdee",
    "signature": "0x83bfc3d5680ea92a2eb5a934347718b7fc7617b6c55fa76a62d53a64ccd0b78f73c99268d883a4033c5bfe6917f740b7e3a73ffbb93c73ae5e043614f76e5a091c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}