{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17075",
    "entityType": "User",
    "nonce": "0x797849336bcb2e11b2eaab0050f2859e89a3f7553014db4be08996ce9144519d",
    "signature": "0x0b1ee0bb319b5d27f0c812cefd757b0aba19f5e4b5f2e7a719e2a7f7c3f2c8c810787ed3c1f8799f67e7d357fd8a3a2d8a34235c406dc6c08467ba6b94c8db481c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}