{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943748539",
    "entityType": "User",
    "nonce": "0xb6d183708a5c9a457454845c7735de10ff7503e8ccaa584947150480fb8b371c",
    "signature": "0x7e5de450a59294bad14a0b285dbd13d1b433c7cd51d593e097d6a3344fc2e7964bf00d52b8635c837c8a125962cac8435ebc2f18763f9bda946d4ba1f435a26b1c",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}