{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632918751",
    "entityType": "User",
    "nonce": "0x3f83df6ef6e3e16e921f132e79c2d3603d8c1c380b2cc10245d503600fc31775",
    "signature": "0xcaf714c63ea02033a49d3ab47093458579e71756f6664378440d9d5bc3bb160046fede699bfb849e53fe1a9d7ca5dbc70505964afb9e56b29df97226de0daa4b1b",
    "signer": "0x1B7594799b4E189Ff1B3C4fD8289B2e8d82B000b",
    "userId": "66769284"
  }
}