Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b1c4212302febaec04acbcbb9bdafa418c8065d008babecca0936326a017760d' 
  AND token = 'XpXbdGLldO6l67iES2eF2U1zS1VCy/fl0sAVOdwGb9I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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