{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "789943876",
    "entityType": "User",
    "nonce": "0xee8cb449f1a8ab30dcabcb8850eb3095cb32debd2d6d054438990dc3cd907ace",
    "signature": "0xcde92f36b7b67a47dbeaba35f028b6ca4bd581e983e7ce0d7e4d82e95c3b7c4c21fbd31bf11c53fd89e1adf3699bf04a319050ad951e4353021cfcd631a423de1b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}