{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x4535f3cbbc2c831f609ecd676971e464c0215d296dde803a7926b0161e0169e6",
    "signature": "0x3597fb8bf02e87c9f23e7264fe5c05c78b5fd585d3446078122ba709286875093f593e0643a575a06c19c0627c8ca6f5c985f9e41bd1fc6539339d9f14109d341b",
    "signer": "0x4c84Df6067D8340E2D5cBD3b122eC9995f52013C",
    "userId": "487670016"
  }
}