{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "701960",
    "entityType": "User",
    "nonce": "0x6ffbe7e59c8f46370e5bc9b39e59784cb5ed73bb7f0fc684303ec9f12e6da7c2",
    "signature": "0x6454adc399c9a8519e225db6139cce7a1e3633c58ae4675ecd6ffb254722d30b66ef28dd3544b54e13d3a14bd14976ed6e4a021a1b66a02e8302908001185df21c",
    "signer": "0x646BEca96ab04bFb6DD725EEBc0383e1Ef13deeE",
    "userId": "588448440"
  }
}