{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "270209897",
    "entityType": "User",
    "nonce": "0x662a00b83a31bda9b4b3f074dfa1c7e3a53bd07dd988b7de346ed147d0d5daee",
    "signature": "0x7fc0038169f2c128cefd3567838b325fa32ed77f186a80d53076f4eb0e5ef3606a75a48f215a5684b42a43fddbd125d1da06b6eb12396ebdbb2bbb7d3fb700a11b",
    "signer": "0x5C13CD392EcB86FaceF8A07FC5B300833E86cD23",
    "userId": "167249"
  }
}