{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "214443",
    "entityType": "User",
    "nonce": "0x8e9f82d2918c9ee5593df51c2296ab8162cd962156b4ec9ebbf97cbe5cd3b341",
    "signature": "0x96b129ed2303635cb1228a671e5b2796fb58c60db9e8cedc749152d5b51aec7c5368adbb26cb3ba2a81d6e42bbeac10d9fe12735b3803c0b76517b8bcf7470d71c",
    "signer": "0x57Ad6E2E3fFc5ABe9b5FE7DC3bF7c07c8cCf9Ccf",
    "userId": "571702334"
  }
}