{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "485171412",
    "entityType": "User",
    "nonce": "0x75612cd0a9af3d2a38045116a7692117a994329b1077ce870a446c7a01489604",
    "signature": "0xbc280c0d09ca898007c457e5e5a1310ab46557a0670a517d3bca9d83182e20592a41168d144e3a1e4c714e776d96913bcc075af6eb9647a5845568d9ded537451c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}