{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1427546",
    "entityType": "User",
    "nonce": "0x1e92cf769062d558e4cdc2b302a3ebca8cfeab91f2eeb2cc68caaf3f2830a4d2",
    "signature": "0xe2f9e69a1f65bd1d7f05d7def5c9c4115f861bc6966e08c66325fdf7702b4fa04dbaaf13670ea6529d7eeebcec2858725a18c488b3ac7850fcffc1a34cc696fe1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}