{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf06ced14bcf7b7c5baf283b589303a67ce6ca42b7fc4604295e98f758a40399e",
    "signature": "0xb3ec4459f74812a0a188c240d918c60f72d0d966278fa1c91ad579114436715d54d2f795db957a1df76839fa598fb61eb9957ac2009f5eed948321330ac97b761b",
    "signer": "0x2C19622b09dC33fdCC76351400b7242a4a7F1320",
    "userId": "27024129"
  }
}