{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "487755133",
    "entityType": "User",
    "nonce": "0xc04f4974f3619bdda9df382731ca2a41fe4deb9f0a1d1ba72384de334f3ea610",
    "signature": "0xa3599d64120dfd86065bbfe9130027e636a7062538e9643dcec2097054edea992e0155f327290e9acce44b89fe21d4c41d06b487243523a7182acf24546803551c",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}