{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "709633854",
    "entityType": "User",
    "nonce": "0x2ce5e9037ac32bb30efdb0a8fb06b1104b3c5c2edc01298cf268a953a1577c2e",
    "signature": "0xda3365ea56e4ab9aff886e1d74b5951baaf7c0dc14a49199b849fa35dd7862827c4c8e44c34309014df31d7db5a3b1dcf0c11d0eb373c0eb787e94b1b9fd96fd1c",
    "signer": "0xE466248f391B5f99247E259e38d4f898225001e0",
    "userId": "260762194"
  }
}