{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0ea9aa041315fc14d52beda2462942ac34ed1b063a866b0b1b7d34411d2bd1a2",
    "signature": "0xc0fab1a359d086dc015cdc079d82e6f79524b148f72e85ce267ed46782b1d7905f8b39d4e104ce6420df194ab4bff2589efe88577ad305db6e1d5c33269b9e791c",
    "signer": "0x4A59A9F3b8D4eaEb6D464D1fA490e5F05e5F86E3",
    "userId": "96652407"
  }
}