{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "647026554",
    "entityType": "User",
    "nonce": "0xad5e3256965a9079f0d6ef3570d1bcea6f24f8339a882040b0548e37a811df7d",
    "signature": "0xe9bc70a065c7dfce5d8ae2ff9e4501bd07c18984218c2627ab6dc7bf6e308fd06b2c60c59f48c5884f29bcb7deab18d93b05894d760a2a74b3eb45e5144c3de21b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}