{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951644728",
    "entityType": "User",
    "nonce": "0x0ece0112fb6bd706b876d30a056cf8471068f4c87c7860550503dc8c95bf5181",
    "signature": "0x1602cf768a164cadb51bc0c7f4a0c183c9b2c64aad424f669f108eabfce1d31207b3d48b63e96ba0405599bee5416efff975a28a3de0f2290cde17a85977413f1c",
    "signer": "0xB37E6e788b6A39dCDcB53bf8D70077f76F5F5C26",
    "userId": "895209133"
  }
}