{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201346",
    "entityType": "User",
    "nonce": "0x8e4621527b5fd5421873fba860753c5681e7aa3f92847eac231b87aa13e9df62",
    "signature": "0xd02d1013ae25a43217b8cdae7ceb21e0683377b72a3ebf747bcc2f5a2d307a08019d860352a96bcc2313998c864cb6f703e650ef49a61675abaaa6e0ebe054821c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}