{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9883",
    "entityType": "User",
    "nonce": "0x38536d76345642a8042dc097f0fd3ac17f1505d190a0fee062e03ddc70729119",
    "signature": "0xdda156c84772a1a1d3e56112f936d69086f2d958043914733bd416ae138a725b16af684fa098b7546b5d7f9992a527753ab6fa1022938f073c8d82e1c8c8aa421b",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}