Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a07c6034e66727a40807beee91928c1b7ba53b4d01af92ecb1d0d69bd8e403af' 
  AND token = 'trt+RM5znonixVl9M+6npMLpfMYr1DRA3zzgwPYK4aQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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