{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "618242981",
    "entityType": "User",
    "nonce": "0xbd33e02e04ba86e1f492b4a4f0e0b4c307e438ce4f1ceb14c83f038bc7ad5598",
    "signature": "0x6b2aaebf840ec9ab3555ca7f41d19fe146edad558c6d8f352feec7b330fbf1c46bf4d2762e8f8b185ea5384c11dc994bf82f6403e93fd9a9e7e47af14e9ef77f1b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}