{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30558",
    "entityType": "User",
    "nonce": "0xddfb606c88b375b23fe02d7b978ade665e485156ee08d2461a10f0bd2633fd2f",
    "signature": "0xcbb7ef66fd816e36e0878478b4cc6c2bd1885f794fb550b0732daa5000f698cd249fcc03f1d31fbb9d669c569e3ec142fd738190106c9638a1f9351d0863e6d01b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}