{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871324932",
    "entityType": "User",
    "nonce": "0x4313c62b441b29b283cdb1773594e673550568f1ce65e4799d72a6a7b1d1fa00",
    "signature": "0x6fb9ba70db24c7726c1e7cdc6f7f98a9c03beabd94805b57e31c36e6fed113f0022359b1b29b119670722587bb26a2e8b2e393e62e945351520c83204e50f5691b",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}