{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "147561",
    "entityType": "User",
    "nonce": "0x0b684f24b6c8e91a42d284fa7f7f721e5310d5253209efeb137de10d5b643ff9",
    "signature": "0x32b478c8cc76aafca54fced9aee0c31374f17d1f15cbf3c99f17fb146b0df268132a4d95311c4ab5548886326f992798235764adfa0f70b0b3f16cbb82e0201f1b",
    "signer": "0xd9bA17330fFb3Ea1356C5eC14971D9e1f2cb5200",
    "userId": "337125448"
  }
}