{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954117045",
    "entityType": "User",
    "nonce": "0x2df9ba7abdd8105be3874d7544301fd53a9f4c1cf22306be0b30ca35e10f4196",
    "signature": "0x72e2cf01e8681bfc0a8ba0865dc2f7f0edfcfa5c9efcbc9d778c07828e38f6652bc024fbd3de940c1c2875e9f29c338f3b5a2c25e37124ef08f65a45a542acce1c",
    "signer": "0xE726D55D6940a70995Ce9D8aa1aCE76FC6f4f544",
    "userId": "285113781"
  }
}