{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428106597",
    "entityType": "User",
    "nonce": "0xf4db460c1ae2cfbe6e1cb02c482c705d509ddce121f9c710326a2ea5abedbee5",
    "signature": "0xaba8f68ee0da957f79b44f9ca79812a72c433f2109a8d03dd7851ee1afb2a04560cf8745bb4cc78992aca8429eb768bbfb07f16e7a745dbf4ccd61120e042ddc1b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}