{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "910778788",
    "entityType": "User",
    "nonce": "0x33b17a58aeadb1b27b447e0edd80f41d7dd395fe5653f5e2313a815ad7963158",
    "signature": "0x63887679b237f18c4bae41360009aac76c4ea2448702d934e05d1031104bbc117d64f72ece2623a18575a90fcf5d094a2dbccfefe54a9e5cd9ae022031fe78b61b",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}