{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "852344394",
    "entityType": "User",
    "nonce": "0xa20ebc9160fb754e702f9a8f53a6981cb3bde2b12d249262272066579c71fd47",
    "signature": "0x051916bfd293ce43364a21b42232de193cbc15c15834da50c225e2d398da631c66a15301b4b93bcbd4087f8f61ed7ad840cb73ccc08660f78d4d7a27d5fe43231c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}