{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xde78a69a44a2a8e0b0d8840a009c10e3f653d005b0cbda9a5db6057425b5e5f4",
    "signature": "0xde303a0a68a639e018774845a2ff3c87d9665a1707d1d7c72d0bb44afe9b535a102570f49c5d1a880d98a393ae93087af79f8c4b6d272f10c875e9467edadf1d1b",
    "signer": "0x6313d065d34f89f9FC6BF460347CF8c76085A4a4",
    "userId": "370952704"
  }
}