{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1037774",
    "entityType": "User",
    "nonce": "0x3da2fc29a14e983f0830b4469680088981a965af88f888c2fc5bef7d3d6a3fe5",
    "signature": "0xcfef9046148845206985c66a2aa88e69eab25b48523bdab5979ff78e80f037bb6c0f263f6f17c0456346318848c34f77eec4de74f286469e43211d49372d7dda1c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}