{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395602",
    "entityType": "User",
    "nonce": "0x9a66a49d6b3514c60300a91589e6d7a462cacc40290ec0580853ef389e536536",
    "signature": "0xf4d099d7f08e573c30fa383b5120ff1481e1dd6a393658c6cabda7c17e084a0110acc7fe5830d2915e48297f4b8ce341af27909fc675ce43279755d6b7a3777b1b",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}