{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "484365174",
    "entityType": "User",
    "nonce": "0x83697e150a97a90cad5b83ccdf95c89f1ff1cb0a4d814e609cb5453cd8d309f6",
    "signature": "0x73a848d0e78ecfc0ff5698bdb820feca07ee03c42c34cf1dbd88b938a73cbbd0786d82ac031590e80e242e0b05dd24145e88e9e526c63ff32948ec60fc2bd1b41b",
    "signer": "0x42cB1e20D724BD902Af64cd85c700BE6118500bD",
    "userId": "47154652"
  }
}