{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "781856",
    "entityType": "User",
    "nonce": "0xbff8bb94ae363b9bc2304ef34404532e5559e54c215e2833b9cb080434999950",
    "signature": "0x3a29fa89fb94df795d0a9b58f672728ecee1981791f3879ec54cde3fc587e5a520b96d2d5385725cff87af3c0fc1489d4e6579aa2f0457bae29c3dd5d7aadcad1b",
    "signer": "0xF08935327AeC6306C8d0eb92999567e5496848C9",
    "userId": "989073793"
  }
}