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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '69244aa35f593ed4a73975eda4729c2b95986d11666266ae687554c0a13ae1cb' 
  AND token = '85R3caleqCSNVFgi4dM0yVHHntdCid4f14U3QeYu/BU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}