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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0314cc7dc0ba1c991adc69f4fc1ea8714e42efe99a40b414f3176123b26fdfeb' 
  AND token = 'o9C5EHhmJBQeP4aHw2hKUHF6L11+c2O8z46JOkGSFoA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00108

JSON explain

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