{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135644139",
    "entityType": "User",
    "nonce": "0xdf43239d9c058fcb6356f0b3e39d5bd176941d50be5c241df1d288bb90e02041",
    "signature": "0x4f991b7a120a2d0e4347b74359aae497e5cf7629a363ce8b68bc7320996cbde03dd2024f9b757687c4c18586ca93550a94188781471ce20928cf2a53e2ad5f5c1c",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}