{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "762593015",
    "entityType": "User",
    "nonce": "0x478b55c54f447f61d74b6e55626a457cc92157bab0454bc8ad3f6c254054508c",
    "signature": "0xf7ff6ecb59308791c9f7c6a4927553c361c96a83f15f2a8937cd395c709048340f4f6dc0459692d307f6c7aa475928920276fd7fdda2a60cd5a29d40c51d65b81b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}