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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ea114a232db6639af199edd5aebaf00e50b1f55c86cbecbdd88bb37a59ed6d2a' 
  AND token = 'LOhogGDJ0Y/iR/KvW2JLcgvek6KlJBPR3K58jt4dzek=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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