{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "697314",
    "entityType": "User",
    "nonce": "0x487c69e476fbccb144c3647522e3b1828b420c8ba9f6493a0ecc78d9227c9de8",
    "signature": "0x3bf9b8c8b5dd4e54039f69fe294539d73530210a8fa9b5372377fdde09b05a88364e849382f4712c756b565c65eba6fece62c47abb740d79f329136f8fbced951b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}