{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72534",
    "entityType": "User",
    "nonce": "0xadf7d2dc087870ab43bd5aae8c08fc7f96016d4b017f78eedb6c526162aa2135",
    "signature": "0x8a80851fd0d7d7617a627ed1f47da1c36dea893bd5487119df8755af7c8f4aa96723506d01099e6984eba9aa873ef86f258a5c8bde089ec8d54cf7f16b90d4481c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}