{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "312358",
    "entityType": "User",
    "nonce": "0x5f899022f1607f339152692a1134cd6eaa2c1e9c1696b91f3b63f834741e07e3",
    "signature": "0x91b3e520b08d1a4fc4189c7fb5824316ea7ec905d01176007664d0629881982966b307ccd5b01668edec40ac0f98571e364c163e60bbec2a319e0895e6b66bee1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}