{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1730737",
    "entityType": "User",
    "nonce": "0x3af193bd3a59ea5f8d96081db12c2f52ca64f443b21d298953ab2f8e1837dcfc",
    "signature": "0x8fe4a7c48b8b500c282aa4a118e7e34a73dfbc87a91a35d179226909af1e72ce69ab67b8c13762b99f072ce8d1c15f1ca58d22e31a639f0ec29bfe4b88916ea21c",
    "signer": "0x1A1bd7Cf1b867a8f368050Aca1C77acFF3053522",
    "userId": "230449789"
  }
}