{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "461639812",
    "entityType": "User",
    "nonce": "0xa2810cdcf2a467cdf91c655de920c5a7c5cc169f9aff88a2ca28e2d815e65580",
    "signature": "0xf13dcfb3cef093bb736fd3c9c7894d2df580aeb5f4aac7511add2eadd60ba69358ea126a3d08f1af4011e51452f74e503fa475ac4237cf0af5101a0294a410361b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}