{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x01b45db43baf7cdb622e378aa3ec342397e63124aa8e5ca726d528c9e561a40e",
    "signature": "0x66104e2f826862ea33cece3a8f1cc157c1ef4a36c4ad45c27c023977381bb3ad289e257f3287b318335735c3e0b99d443215d13796bc62d6ffd44e6dbf34e6d71c",
    "signer": "0x3CE307cb27B2Fc2b03Eae311050CA4e8C34Fa57d",
    "userId": "50936"
  }
}