{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xffd0b577f69c2359a0c5be1e84b7ad4fec14bc3ab562b8f4300758a28f0d35ee",
    "signature": "0x05720219b282321f00d712b8e8368dd2c5bab3762c8f8fea6de834b0665a87b65160041a660eb7d8567233eed79bb249bbbec0702571cf053cd9fcf0e1b97c151c",
    "signer": "0xb269559A55E5092BF03B5F5b66F2ebB0848a59DB",
    "userId": "24197631"
  }
}