{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5828cc9996e483c05ab34efd5f9d3e33810f7f06b9ef1d463c9b2a1f611ed692",
    "signature": "0xf54b7d45a9f65f714bf0b43376bd2d5f0597d5022baeb240920637ffd256b8386396c802f8ce77ca949f9e559311f2633e94360a7f9b7df55924e09f1b8ef4bd1c",
    "signer": "0x3CbD0Fa44F7D10274036F2727a02f54a8C26eCE6",
    "userId": "742040491"
  }
}