{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381309",
    "entityType": "User",
    "nonce": "0x408c46ba36e8ff4f151d0478fbad45e92bc023eec47b3389d6d6e03ef2c56766",
    "signature": "0x6ae926813bcd37a17c13d1c75cf5fd168a8ea9073dc66d8ab9eb84486a3f9c7042972bf65baf71a4f769b811150dfcdc8e24801120e5a8e59b7e52bc8ad642781c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}