{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x946a72cde8285028133488cb837fc878ea8d07eb2cee7adbb72074bc47c23add",
    "signature": "0xcd11b42fe8919889ccb6759848da04e5f21a2e982ebbf816bf33b2e84f94d83d06219f03f2eeb1f82d0904e3795d34e79848f49396ab5f17bfcf783bcb47331a1b",
    "signer": "0x9f9a10F710a7ac3dC3eA820283C9a0B2587CF4AC",
    "userId": "790412186"
  }
}