{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xde0e41339443d093bd55032edfbb1e7f8b9201bf4cc65238f113bcd55b6fda8b",
    "signature": "0x962c4b7c6297df10d47d93e21cf7dd377b8d4ba248c0c27dbdbf0505f4e9c58c5c41d113850b7cb55bf1c864a95ff32aaea509a27d4d45b610f15dcd06a9a6791c",
    "signer": "0xb15d7053c985Edf1d74fFc9893ab67Fdc2B33090",
    "userId": "211545300"
  }
}