{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x9cfab53fd18f73e2806fdeda0e2aab0798c3da3c59044f5ce02b05bd1a33b576",
    "signature": "0x2d8070f1d5b26d7e93c8058479d4608e3bd017d05f003ab40857b3b4cb650aac57bf711ca3a8026bc1a9734c0ceb69958a910e4b6ad0e8aecc5c9189ef888ec71b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}