{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355253",
    "entityType": "User",
    "nonce": "0x60256667d841640dd13fdcdd4c4342a47e690612abdfe202d4e66121b5db91c8",
    "signature": "0x0af49e2836dc0723e3e0b3d1bbfc8966a599f683f6b1719986dafb59c06a97973c9441a873ea1014821b3e3961d5e9d644c482d70e8a71ad36185152d78b2bf21c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}