Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '863a9aefe44292cbf5d93b3f8c5d4f16bc31c15040ff458910f9ca7154dae128' 
  AND token = '64DD99LRYA+rNYJuEr4FvPmHQwH08IwWDSKfoKKpfG0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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