{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64957",
    "entityType": "User",
    "nonce": "0x89aee261f6d93322d0d1bc22ba708e275c8d1f3403acbd79e6aad88039f2f106",
    "signature": "0x51cae53639265e3d24e3d31741d12aa7c0888e16a8f2e38c59bf2446aa1b5b2c31e5483e8c73b8eeb5944cb70fda26e28cb18c1be49281176c01d350785f04731b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}