{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73877",
    "entityType": "User",
    "nonce": "0x57d62f6c9b1045be98b41d154a22b793bf5b38b30ae26e7f0b112e1dbd8f102a",
    "signature": "0xef841299440da6a30b33ae9704d96b171f78db9d7c06c08d79b261bdd734264902de9602d15bb0e55d6f19a4d7cd4f26056a197c6ca9813d23f61d64101451011b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}