{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2050467",
    "entityType": "User",
    "nonce": "0x92038ac8b15994a3c3a1aa27ee75ba87ce7134eeb7c4ac54bd34143a8819b94b",
    "signature": "0x6298c5d3c6081e0d2e09daa2cd0cd1942bd17f02cdd7802cbd27891986c3479c7676f66a9101a00fc36fb438f91a461fd6b4495fb1cedd839dacfde7327f21e81b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}