{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x950033c83c94c4448bb75f01ca7407bdb2e400c283b7be6d87191507b40184dc",
    "signature": "0x45439359eb2afb9ebda4dbb5057b998ceb8ebb8a32c9a20acc0d754a9425f16c27707618aba3a72a27242d3ef9ec0152001b915a6217f763a31e01f145991db71c",
    "signer": "0x6f4bf8E95C5Dd2Fd31Df48897c70511FcdECFa36",
    "userId": "313776504"
  }
}