{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357010",
    "entityType": "User",
    "nonce": "0x5afbc1c4a1f33feca7a73891d2b6a902474353853c61c850a6819f47949a7179",
    "signature": "0x53df4ff9c9c9a474dffe6a61b495a57a33c4f42470d084de92ce2a199467de47469265504ffd317cf0c2e77ff5b2a6f0af1b080a976ba542f6a00a0e01b807e51b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}