{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "361442",
    "entityType": "User",
    "nonce": "0x581c89bd480572f250c5506b3d6a7f40bbc98aaf700c59fb8215b2131faaa9fd",
    "signature": "0x38749ab586ec0bbd9a8289c59f8eeb5981ac93a025145bbf9ab74ea1859fbcad0b5d35d13f7ab73de378c0e16c7146b5720acab27437a6a51c4a1a6f0ae72db21b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}