{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x6349c6a7da234ba3ac329e12f86e9d01376000c9b6c99a4e6b58699340e58c29",
    "signature": "0x25bbe60bba2c724533e47d6d66f9df3e56f7e166f8341259de72509405a0287c246dfc1edd2cfd3dac3be271128a7ce53eacfddd80b570b5344839868ad384ae1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}