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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '215d296ca93dfc414bfbe50805d7457cf0ce12dd5f408c3279d0b8ab74cf8d0c' 
  AND token = 'O4JFSWnwbwq9A6UinJ2iQRaP5RRuR56oz21VC2av6yY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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