{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "158645",
    "entityType": "User",
    "nonce": "0x3960bc2b93917d4018625222a8d10d5a0b416827264e6cd3aba0464c12c37331",
    "signature": "0xa668046cba6f8f5374d131615c83261bad6e018c2130e5c6c733c1f4578d2a3f46aa4ec1d1f7946f554a363a2631b051e544340124734834d016db0b2c3d0fca1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}