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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '732d9483e17e1445df9e7793c4b707814c4bebd2fb37d641e40e6e614730a4ae' 
  AND token = 'NOr6WSFU8yuCdvHCaflFAZT6cZHVqS82+mqo2eHfqN4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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