{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540529323",
    "entityType": "User",
    "nonce": "0xf2eb33955c3ce65c93ac62f0d5556266f9bd10d9d7731d31791f86dd5473e009",
    "signature": "0x8630f2c78d1d898e0094fbe60c3e1854fd00902ba7f90047fdd3d3c1006833635d542fd3c2c88124a733c06534d3401c32732027d1a2a83f3a031102617589b71c",
    "signer": "0x7C2169544c0568cB3b210f320356B6A77E891F30",
    "userId": "495616082"
  }
}