{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333593",
    "entityType": "User",
    "nonce": "0x02b72b1d5e9bc3e8d48dd6f9694c2de244b0553c80f8eaa3fc2f461a3eee445d",
    "signature": "0x79ee7adc97e4380a2ced3e085b7546425302b3cea856a690eefa00d906d67fc50e2d515557c79f4db6ab0b7f3306e33953779bf00a5c36bde237fa2aa01f39421c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}