{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "352851",
    "entityType": "User",
    "nonce": "0x9ea6c3630785100190117c92dd7055a05ee76c54d961db689ca2c7907e4ef5f5",
    "signature": "0x3e12caedaef0f5d118547d7f7a87bfe509395c4162fec5aa3e6e83269dee2b1300762809b96de1e17cd17777a19447b7791ba41d068376875c9af9bd2fe03ed91b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}