{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x1b8ecfb3e10b35069c7238b18e9e3aabe8db9b354e105fe16e0101f48c4acb0d",
    "signature": "0x591e1dda5e6cd51fd84e7d67c8011c91917b0bebdb390e6932ebd2343a464580029a19c5fe2ff80c901185d10e49b791d08182661e684bebf71d5e650145be551c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}