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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '726aad69d65213a68b5ce0c167ac0f41cb5172cc4e02f9692ef1e29137fb4e11' 
  AND token = '0oO90IpPNC6BLOQwzxlzZjUekheMxOZ9zVbJNgh2jYE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00180

JSON explain

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