{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe6a4a06f4ff9d0c3f135e9f3fb401077e86d31f53f17bf194aa77b48abc9b3bf",
    "signature": "0x74aec3acf5e8e87c420409f3cf4dc869eae1385526d26fb55c2e9f824deb16c319f20c9b4acd2170646e0b760149ebaa89d5b6334af21b97895dcdd65563c9f61b",
    "signer": "0xFd97e7840e2361807A097a179fFa5966097d5ec3",
    "userId": "445239884"
  }
}