{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "159460377",
    "entityType": "User",
    "nonce": "0x670991d2838395e810f08da88d66e9e1975beb48c75b2e5fe6588e4231505470",
    "signature": "0x2f2e1ee492ed68ec2b11ca36f43255bb59f813eb82f42f6f97b9d23a77f8578f26d6007cce13f3dc0e16669de7adeb3d7e1b5d597fc52c27a5aa518cecde57e71c",
    "signer": "0xBe0B2B2beC4B0A46ff11169512DF7f66E775c0B3",
    "userId": "196632465"
  }
}