{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215993",
    "entityType": "User",
    "nonce": "0x7bb5e5ae8c1281e32ba14901d8e69a0ca399911c5c06eda4120aaf7e3d65f6db",
    "signature": "0x22f9b62c0817ca95a3c59606511ea45a5baa694a890bd86e7e9f7d9ce5066f49030352c0bea694f09cb0e66cb5c3a5e41f86dc3845bcc39b84b24c06e33a88b51c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}