{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385517",
    "entityType": "User",
    "nonce": "0x74a439ccdd20b43204a1c5e0990a2b3373e65898b2a384c4692235a8780b916d",
    "signature": "0xd7953e086acf6c5f36da8aa43153bdb01172357a543add2bbb98dd3d6599b74a58930a501c9d1d3b364cc2ac2eaf8bb2d280486f4d6a597e2a0c3ba0aaee2b731c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}