{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd3e85bfa8c1770350a9a59c0267993c29ae9f989b013bce429364b3899c687d2",
    "signature": "0xc305972eb920eb84433edd7caaee7b723a458ae83ee71e3aaf00a235bedb355d76a0df5265848b87c25db99e7b27195c65d214774e5923719575df793e7f30b71b",
    "signer": "0x7c8e046dd564f995b682A57C7ce10AD1AA6c2F72",
    "userId": "724962043"
  }
}