{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318508143",
    "entityType": "User",
    "nonce": "0xdf070dde63334fbe937f636e8924045ffcb70f548caf7395371e47d1a68d1384",
    "signature": "0x0e60fdc4f9a284a42685a176dad5d16f820aa773cf50d898ee85b25cce3afcd61da96992950a88d74ed32cd946476aec11953159bd273ad68c7568cc0a9152601c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}