{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370142",
    "entityType": "User",
    "nonce": "0x429612218b450bead46cfe4103d41de779ac2565ee94cc69a0cdadeaf292038e",
    "signature": "0x603dfbb011241516c486feae80293a682e6f613245d297c3cebd18c7bfae511d4451545339dd072ffcb0eb43e5289643bb912a7df149e5fb0e0922a6c786b7211b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}