{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "249972",
    "entityType": "User",
    "nonce": "0xaca007f64e0ca0a929b92888892bf066f4d8574d581d3007e077767db7d68336",
    "signature": "0x615b1c920ae2911eb3b02f062a104d18451bebadad96053d3aeddde4f4cca4854b3d656608a0dcf9d52ba122954c53b7afb60a1b8ddb5f426d43596b85b0dda31c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}