{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381638009",
    "entityType": "User",
    "nonce": "0x0fe62d646c7cfc04a039bfaa56fbd31cda8aa79187038e66068669629f47a478",
    "signature": "0xace5d25709cb55b9cac41b7c4f20d68c2f12dac0ea90b2f7d23d754a72641ea34742e4d73529434fe4901c8e9daf3edbe92408c1d673735766e6ae50524a3c661c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}