{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "298391",
    "entityType": "User",
    "nonce": "0xed491e3b42ce5a3d41b3274312bf401e894bb05d9c5ecb5199ccd2e51a083b92",
    "signature": "0xf26ef0bd56a25ef1bb6677f7be8e1b4aa10fc052841ae409bfc2b5aeda2aab5515d07c24d2654d6a1eb983b6182102a663ca826734b28c54964376b6bfc65fdf1b",
    "signer": "0x72dD6E54C1904BDCf2b8a654d8CD35Ba1CeE11F8",
    "userId": "211770148"
  }
}