{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x50668cfe0951fb16a5e9434fb3de7144322a41538affc1a4944d70897aac86c7",
    "signature": "0x606aa6c4041a820c9caff30a4a57bf0f10ddd2e6bc3eb7f92c4435b7c86ecf5d2f47b34f8929af70049b9d9c75366cab77ba82cede29b620c3e5551986328f351c",
    "signer": "0x55349D5C27fA01d528A1486a01312CC1A8C55c15",
    "userId": "966301573"
  }
}