{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394061",
    "entityType": "User",
    "nonce": "0x74931b6003a1d43cda34d52ee388f19ed40122349c7c9716f811fc2a4c5a8766",
    "signature": "0xfbfbaa3aefa1f15bbb5a2c5e34b7e520e3c17ce123107383bd431b641cceec114ba46cb6f99605d7ad0579421615f64dd08db4d0461de1c76610c73a4b6fac3a1c",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}