{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "672274420",
    "entityType": "User",
    "nonce": "0x063581a6fdaf1da4ad30145f5e349b419da240dda8d675f6b6b6dc23f26143cc",
    "signature": "0xc620edc29cf5dee9b42a33aa6a452a01f99e409dbd5ed5735800dea7506acf5f723db8912a523c6f2c2db913d14cda81d9c3aaa6a3f9bccf2e2836789e6576541c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}