{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x28834e2366e62f71c2bfd920cc7f0c53079400bafb34d8fa0ae58df905133c6c",
    "signature": "0x3a3514d42f436bd32606cffae712f4da8bbf25dd6bb581631fa3760b59cba3b20ab73e43180b1b5b2ab40ca224ff83f25ef754786f4051b443264094ee89dcc31c",
    "signer": "0xA6d1ab0F9133BDd0FEd44f5E96eB87CFfc5Ac3E1",
    "userId": "552984580"
  }
}