{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0x1d514e6fe825e6e89982212a81b474c71f6bc4f062d8c4b1f8fcdcd08908d34b",
    "signature": "0xfaa0e6d32b0b96bec5326a62794f0e8676c9a4d4cc40f44977a30ad9cbb997646c8bdcc9c01bbc6381b48e59aa05341f9dbd7c59af37b1b6b87bcc0692ce76d11b",
    "signer": "0xc01BB3a3E7C64dB44052AcB9aedA3f7AcA268064",
    "userId": "423602960"
  }
}