{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x33ba7bdda67f946a2d2a41d9af21284dbdaacd70bd36ca10f7acf7e1d5a7a9ef",
    "signature": "0xfa40b18e0f4bd0fcd22a971e35e04c9d248787109cee5641671c4e54140caef909e0b464b92195d8440c766e70153b6f29ccde1451fec7bb8e253ff3d1d8a5a71b",
    "signer": "0x8F792689014A16F1951Fe17ce5Fdc04a2B401f1D",
    "userId": "129121171"
  }
}