{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1880f84acb06f25e4226b6c55611bed685977b8bade6cd3ad44fd05c481f884c",
    "signature": "0x0c2938f553a84f89cc6e08321f08f797a041c2182a0978f9ba94274c4c6b954426f502a7b9662f391900ce3e5a0da0f354915f0b4a6ed98fabf0eb33b2bb3f751b",
    "signer": "0xFef4Dd9023A7Fbad11746cd9e05B5dbc92a4B3Ae",
    "userId": "405788067"
  }
}