{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1866428",
    "entityType": "User",
    "nonce": "0x897876fece7a57312ab2a1867003fbbab1ad93ef38eb2e5adc8a79eb1ef7ba70",
    "signature": "0x9302419c2d18c2c4c88492258fb11cb968563a3d4c58442efbe2384d4a1a3347069a13092357d53a07bc498198c5d8e5b34a1ef9442093ebaac895c6e04df0e61c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}