Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bfca989a400b36178c3aef26c30416d8219c9f6af3bdfa504b67bb2172d582be' 
  AND token = 'pPBrdyroXWkpt2Vf82A/AluF91au1TA69AFqXllkaL0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00057

JSON explain

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