{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0xd6f609cf63cabfd3808f0b5e6de981da3e740f038800870d93e57df4cf72ba6c",
    "signature": "0xd6a06df88c2c53f469775edda9d423d3d6a89c491653a05a267cbf5ab3b9a4c93d8443dd7ddfbfd7c39f42faf63fab5b4b4830b13f7cf75969e4e5d9011843361b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}