{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2c6779c0af0af8320668ebc7deb45bbb43e3227fc59960ba370303a471244ef6",
    "signature": "0x43f525481e1786e487bc3eb592cd62ad28f8dfbc7ef927bbdab17db183239edc29c2d59a45c79d0675f505d24f5315833ffcb5e6838cd3a096766fa546f6d2981b",
    "signer": "0xdc13E26540047CCB9c3E2F99b9ff2b7DCd0Da018",
    "userId": "350077186"
  }
}