{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xea5db7f05033cf38b57c95393efbcdf46f0db0c4785a6811ce75ec710c9613b0",
    "signature": "0x678369fff6b90fb5ab942f2c7b8372ff654f29fba7bd3a79aa634824afd4918b1d30003c40c7a0029b7c9fb242e98ef5482a4e06284705593695b1989cc69ed51b",
    "signer": "0xAce913FE451Dd13068B3aC71f5AFD80a002844c3",
    "userId": "913305852"
  }
}