{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "363226",
    "entityType": "User",
    "nonce": "0x3f954071ebaca568051d23cf37f62caf9a184a8734778b4c65f46cdd62824f64",
    "signature": "0x44a081a0898a92e228814e22be6d547be65136527521d83a4c995e0242824142592950b1c97751a32b75f47d3c5e6b8f6ab5286e8453df52e165be60941495351b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}