{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0xe0e866a57a727320ae26421cc4d36f39f395dc6cc7f4a8dc9cf8f0bed9f358a8",
    "signature": "0xb88739bb341a493309a182c3106f53343bc6f4011efe3194b625fae7cd7b413249969763f8e71047ba1903fc39fd4844cd062304a96e62e3756910cbaa867d571b",
    "signer": "0x3e4953461b6671604B2E8fcD0BdB628DF4C16609",
    "userId": "167051786"
  }
}