{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "847467862",
    "entityType": "User",
    "nonce": "0xf915528c22da6f336e9467bc0b52e5952f2edcde81b9aa40933ba007acde3283",
    "signature": "0x9f3187d3d572ddb10749eb088728931477112f0c3521711dc8df7499c042a83571e001c5b64e0559609d2b42b8e370f3168a318881948ac8f3a991a7808f4c081c",
    "signer": "0x71ee6650510BFB16b2B0954FE291a058544052AC",
    "userId": "30595601"
  }
}