{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "772732",
    "entityType": "User",
    "nonce": "0x3440fe553b118b5e8c0fc265194f006fff17b0f1854a5f6b02e6a90f71efc4dc",
    "signature": "0x68571b94d0216ac653f11767fa82b6f5397b623f869f9aa9560309f5de81dbb71d970b53e7263753b5c57b0ef01e856c241aa0fd883ace50b4857432fb576c031b",
    "signer": "0x69f11622ae51A55c34462DAfaAa5b4E7e77AB644",
    "userId": "513195827"
  }
}