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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'b1d07a1e504237d85e3e61a0d75d6a4ae69ca592395b5e5c6364699f8205c86c' 
  AND token = 'MwLHXHPnKhvSH56DwMHFD8JtPJfT6tdG9CghLCVE7U4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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