{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "433736335",
    "entityType": "User",
    "nonce": "0x909bfc73baded94a23988caec85cd5cd15d7fc34c2be13af92c3da0bc0e10834",
    "signature": "0xd76097d43cdeded79a49942cce7823c7580cf275cf4e9f59cc0a24e48001cf7756fe542e393ec69c1112dcc17bc6461365be4fc96c0805eb2fd4f266fb6b78ed1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}