{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x1fc23bfafacbef1f951b2355eacc9da69b43e972dbc045f2659de41dfeebc713",
    "signature": "0x4761b97db5ac590700d7f7dbf82d112aee7ada34e9c551f2a9e26b9545b24bb05042c9d088c6fdb5c8d75caf4e4a48c374c937f9036b5041008e34b214fb536a1c",
    "signer": "0xb001DCb64Bf57b3EcC76C4Fe5AbfE2a8B084D6ba",
    "userId": "641557420"
  }
}