{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "251854",
    "entityType": "User",
    "nonce": "0x4befdb0a8d904bcd154e29aff9113d2e2bd235892400f3fe31ed5bf44899968d",
    "signature": "0x7f18638832472ecea4f954f3fdd30d95f645a50880e104376d12b11c3b2f304d1be0975cd629c2ebd7fcb7d3a0ae2d006cd934ebadb0384acd684dad85c8d45c1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}