{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5159",
    "entityType": "User",
    "nonce": "0xb8f3f139314410563ab215d704087b4e8266aa72457b9549d6d6f5189ac88504",
    "signature": "0x8fb45aa9750f7172007ec4b323586a11cafb36b8dea36861ff114e3380783f9026c9442a6b276919cf824ea73d8988e566c880ca3b52a6b883d8c87733b985931c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}