{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "304133",
    "entityType": "User",
    "nonce": "0xfbbaeb3dbc4444f9c1212f73c7611979178e89d8fa4b66347dd6d9293bac7bff",
    "signature": "0x2c91e601f4b3d8cd19760868b94ea31d389b78dbb9cb569370dd12db7193aab70d54ca040879d527efccf2497700a85bc672e162a16a634b66cec2113e02a0f51b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}