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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd334264f30a7d4f8cbedbcf0b2af90e5fd9f707cdb9a2a0dd4c2d0be026ab777' 
  AND token = 'OseHEGSsgovB+hZmJdUeoYnH5RVRd3t8cCjfUasYS3A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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