Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b980992040f06f24a9c9cdf722a64e3a2f1e14f431649e0a63b205c66ca866f8' 
  AND token = '1HtuZOvUlvp7dsQDrZbWzgDnkeUC2GeFKNwLLK6T5Qk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}