{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137100",
    "entityType": "User",
    "nonce": "0xbd7ddab84be603e66a8360ec56d743db7a7119055dacf9a824b5ffebf81de90c",
    "signature": "0x0689177988006266a59cb7b1f29c5dbd533aaa1ec81048d3acfb3f23decd3a572583187bb5fdcf84f6ffbb6105ea83311abaeac2dbfaa31935c58ee1b4c922631c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}