{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428001855",
    "entityType": "User",
    "nonce": "0x940485e4c15f3ce88d0f400e8b87ad7804fb2065c4dda78049bae46408678867",
    "signature": "0xb9f027c43fb15cc1278f4a1d64a5494e6b6388bd4b61b2b53e7bb04e5188053e6c39d26b2d875ad679f0ea3f5c6a8b87270f56f9c4e4cea3d9efb74ef2e1675a1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}