{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbdae56ee74a45a4a178f53c9088c89b5ed704da5cf3c4d3276f1ebae4203baf2",
    "signature": "0x61671d12cc422ab520b85d0838f2e207c3caad6aae01b8f58eb4450d10e04d01792f8a96d6e0d5db585cde1eb2dc839133e1052ed4295bc68a8a4b012d016b4f1b",
    "signer": "0xf034511ba85caD07c6D9c627B2E63af3306524AF",
    "userId": "664991753"
  }
}