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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ed32a99c7e47d26a01f41d12c281d9524e59d51a29c1c07d4d4f694e118e6fbe' 
  AND token = '5BHTq4u/3r9ELSnSQ5zqFyGCgPcULh8mQSp/Y43yilI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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