{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xbe17f91ba067e30723ec9b82a3431bbf4e522527ed646aa42224a584def093be",
    "signature": "0x9b767f97d93c76cf8bc7a799c769f171c0980aa0d20e97bbd1736ccdd850ef7c2827a301b3e4750aaeff047f38c26b8033f6a4bc77b30df01cf2f4ba6fefa6fb1b",
    "signer": "0x72C3229e8a009963fcCB987460463895a2989d71",
    "userId": "109371348"
  }
}