Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ebaedce4fe8385ec6685c39613b6c01dba0e226de3f64765f733ec47aa59a1ae' 
  AND token = '12E2gWpuLg7JJJeepmTGimp3mbbZFejvm9JVHFBM4wA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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