{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "809803",
    "entityType": "User",
    "nonce": "0xa029cc190926d5a3469ec6771601159ecf71672a99be1be867cf1f21f0d54863",
    "signature": "0xbbdea2236d248e7802585c487843bd24ddbd21677470317a915f1e884ff0c40b5aa2f1128ec3100082442fae1aa74d907c3c74e2465670275703dda0566a6f051c",
    "signer": "0x20a821B898F6Cb6BB0E5FB2460eD4225B40Bd68D",
    "userId": "198400104"
  }
}